These lamps are made with an advanced optical grade epoxy offering superior high temperature and high moisture resistance performance in outdoor signal and sign applications. The maximum LED junction temperature limit of 130 degrees C enables high temperature operation in bright sunlight conditions.

The epoxy contains both uv-a and uv-b inhibitors to reduce the effects of long term exposure to direct sunlight.

The HLMP-Exxx Series replace the HLMP-Dxxx and HLMP-Uxxx series products.